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J. Cuellar, M. Ochoa, and R. Rios, "Indistinguishable Regions in Geographic Privacy",
Proceedings of the 27th Annual ACM Symposium on Applied Computing (SAC 2012), S. Ossowski, and P. Lecca Eds., ACM, pp. 1463-1469, 26-30 March 2012. DOI More..


The ubiquity of positioning devices poses a natural security challenge: users want to take advantage of location-related services as well as social sharing of their position but at the same time have security concerns about how much information should be shared about their exact position. This paper discusses different location-privacy problems, their formalization and the novel notion of indistinguishability regions that allows one to proof that a given obfuscation function provides a good trade-off between location sharing and privacy.

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